@article{10_14708_cm_v28i1_6227,
     author = {S. Siudut},
     title = {On the convergence of double singular integrals},
     journal = {Commentationes Mathematicae},
     pages = { 143--146},
     publisher = {mathdoc},
     volume = {28},
     number = {1},
     year = {1988},
     doi = {10.14708/cm.v28i1.6227},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/cm.v28i1.6227/}
}